baber/WOPTO huggingface dataset:
Patent GB-695693-A (GB)
Title: Elbows or bends for pneumatic conveyors
IPC: F16L57/06
Filed: 1952-05-16
Abstract: 695,693. Pneumatic conveyers. WEIST, H. May 16, 1952. [June 5, 1951] No. 12413/52. Class 78 (i). Abrasion of the outer wall of a bend for a pneumatic conveyer used. for packing material in underground mining is prevented by lining it with replaceable segments 5, 6, 7 of hard wearing material which are retained by screws 8 in such a position that a channel 9 for compressed air is provided between their outer faces and the outer wall and channels 10, 11 between them. The segments 5, 6, 7 retain detachable lining members 12 against the inner wall of the bend. Clearing openings are provided having closures 16 secured by wedges. Replaceable ring-shaped liners 14, 15 are provided in the inlet 1 and outlet 2.
Patent GB-118458-A (GB)
Title: Improvements in and relating to Ignition Devices.
IPC: H01T13/42
Filed: 1917-08-29
Abstract: 118,458. Marks, E. C. R., (Splitdorf Elec. trical Co.). Aug. 29, 1917. Magnetos, driving.-A magneto is mounted on a support 4 secured in the cylinder head, its armature being oscillated by a piston-actuated rod 6 against the action of a spring 10. Lugs 9, 22 are carried by the armature shaft and rod 6 respectively. The degree to which the lug 22 engages the lug 9 may be altered by means of a screw 21, thereby varying the time of ignition.
Patent GB-599927-A (GB)
Title: Improvements in or relating to frequency modulated receivers
IPC: H03G3/28
Filed: 1945-05-17
Abstract: 599,927. Frequency modulation. PHILIPS LAMPS, Ltd. May 17, 1945, No. 12439. Convention date, May 26, 1944. [Class 40 (v)] A muting system in a frequency-modulated superheterodyne radio receiver including a frequency counter discriminator valve comprises means for producing a direct voltage proportional to the amplitude 'of the incoming signal, and using this voltage to disable the audio-frequency amplifier when the signal is below a predetermined level, and means connected to the A.F. amplifier for disabling the frequency counter valve and reducing the anode voltage supplied to the R.F. amplifying and mixing stages when the signal is below the predetermined level. An F.M. receiver comprises an R.F. amplifier 10, local oscillators 13, 17, I.F. amplifiers 15, 18 and mixers 12, 16 followed by a frequency counter discriminator 19 and an A.F. amplifier 29. The output of the second I.F. amplifier 18 is applied to the grid of the frequency counter valve 20, and through a coupling condenser 45 to the anode of a diode 47. A filter circuit 50, 51 feeds the diode output to the grid of a triode 53, the anode of which is connected through resistance 56 to the control grid of the audio-amplifier valve 29. The output of the frequency counter discriminator valve 20 (which operates in a manner similar to those described in Specifications 599,907, [Group XXXV], and 20469/43, both as open to inspection under Sect. 91) is applied, through transformer T and rectifier 39 to a filter 43, which has two outputs, one providing an automatic frequency control voltage to control the frequency of the first local oscillator 13 and the other being fed to the control grid of A.F. amplifier 29. The output circuit of amplifier 29 includes the winding of a relay R, with a normally open contact 31 and a change-over contact 34. While the incoming signal is below a level determined by the setting of potentiometer P, valve 53 is conducting and a disabling bias is applied to the grid of amplifier 29. When the signal rises above this level, the muting valve 53 is cut off, and the bias on the amplifier 29 is removed, enabling it to operate, and relay R to close. Contact 31 then closes the anode supply circuit of the frequency-counter valve, and the change-over contact 34 cuts out resistance 361 which is normally in the anode supply lead of the R.F. mixer and I.F. stages of the receiver, thus enabling the set to operate normally.
Patent GB-1500163-A (GB)
Title: Treatment of microorganisms
IPC: C12N15/01
Filed: 1975-03-25
Abstract: 1500163 Mutating yeasts LIQUICHIMICA SpA 25 March 1975 [27 March 1974] 12495/75 Heading C6F Cultures of edible yeasts are treated so as to increase the numbers of mutants by subjecting the culture to a growth stage in a rich media containing glucose, treating the culture with 5-fluorouracil and subjecting the treated culture to a growth stage in a media containing glycerine. A preferred process comprises the following stages: (1) treatment with mutagenic agents; (2) growth in a glucose media for at least one generation; (3) starvation; (4) growth in lean media containing 5-fluoro-uracil and glucose; (5) starvation; (6) growth in rich media containing glycerine. The microorganism may be a diplont species and the process may include a treatment between (2) and (3) to increase the frequency of somatic recombination e.g. by U.V. radiation. A preferred microorganism is Saccharomyces Cerevisiae.
Patent GB-180658-A (GB)
Title: Method of and apparatus for separating mixed bodies of different specific gravity
IPC: B03B5/28
Filed: 1922-05-03
Abstract: 180,658. Warren Seed Cleaning Co., (Assignees of Warren, H. R.). May 27, 1921, [Convention date]. Wet-separating; washing. - Mixed materials such as mixed seeds are sorted according to specific gravity by immersion in liquids of graduated densities, the various layers so formed being removed from each other from time to time. The variation in densities of the waters used in the various vessels is obtained by adding different proportions of sugar, salt, honey, glucose, syrup, water glass, materials possessing insecticide properties such as blue stone, or chemicals which promote the growth of beneficial bacteria. The mixture to be separated is placed in a basket 20, the, bottom and three sides of which are perforated, the fourth side being made of glass. This basket is brought by a travelling hoist 34 to the first tank 10 of a series, each of which has one side made of glass and is provided with a hinged bottom. The mixture is wetted by the pure water 12 contained in the tank 10, and then the basket is removed and lowered into another tank 13 containing a liquid 14 of suitable density, in which the mixture is separated into layers. The basket is again raised, and taken to another tank 130 containing an empty basket. The removable front wall of the loaded basket is lowered and the light chaff at the top of the mixture is raked off into the tank 130. The remaining mixture is then retreated in a liquid of greater density than was previously used, and the basket 20 taken to two other tanks 131, and 132 into which are discharged the light and heavy seeds respectively, and the residual gravel and dirt is discharged into an adjoining tank. The materials deposited in tanks 130, 131, and 132 is then retreated in a similar manner as before, and the baskets are taken separately to a tank 11 and lowered into the pure water contained therein to wash and rinse off, and so recover, the sugar or other material used in the liquids. The washed seeds &c. are then placed in the last tank containing an inclined perforated platform 37, and discharged by a shoot 40 into a centrifugal drier 41, and finally conveyed to a grading-machine 44 containing screens and a heating-coil 45. When treating potatoes, the baskets are also provided with horizontal perforated screens for sizing purposes.
Patent GB-1031919-A (GB)
Title: Phosphorus-containing esters
IPC: C07F9/24
Filed: 1965-03-24
Abstract: The invention comprises phosphorus-containing esters of the general formula <FORM:1031919/C2/1> where R, R1, which may be the same or different, are alkyl, alkoxy, or phenyl radicals, and X is a C1-C4 carbalkoxy, aminocarbonyl, alkylaminocarbonyl, dialkylaminocaronyl, or cyano radical. They are prepared by reacting a thioether Hal.CHX.S.CHX.Hal, in which Hal is a halogen atom, with an acid of the general formula RR1P(=S)SH in the form of an alkali metal or ammonium salt, or in the presence of an acid-binding agent.  The reaction may be carried out in an inert organic medium, for example aliphatic ketones or nitriles, preferably at a temperature of 20-100 DEG  C.  The compounds are used as pesticides.  The dihalo-thioether starting materials may be prepared by halogenation, e.g. bromination or chlorination, e.g. with sulphuryl chloride, preferably in an inert solvent and at the boiling point of the reaction mixture.  The inert solvent may be a mononuclear aromatic hydrocarbon or a chlorinated aliphatic hydrocarbon. Detailed examples are given of the preparation of: [ClCH(COOMe)]2S and [ClCH(COOEf)]2S.ALSO:Pesticidal compositions contain, in admixture with a solid or liquid diluent or carrier, a compound of the general formula:  <FORM:1031919/A5-A6/1> where R, R1, which may be the same or different, are alkyl, alkoxy, or phenyl radicals, and X is a C1-C4 carbalkoxy, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, or cyano group. Emulsifying and/or dispersing agents may be present.  Carrier vehicles and adjurants listed include aromatic hydrocarbons, paraffins, alcohols, amines, dimethylformamide, water, and natural and synthetic ground minerals.  Both non-ionic and anionic emulsifying agents may be used.  In examples of the compositions acetone is used as a solvent and an alkylaryloxypolyglycol ether as emulsifier.  The invention also includes a method of combating pests wherein the active ingredient of compositions containing it are applied to the pest habitat.
Patent GB-142857-A (GB)
Title: Resilient wheel
IPC: B60B9/00
Filed: 1920-05-06
Abstract: 142,857. Hobson, O. O. May 8, 1919, [Convention date]. Pulleys.-The hub A of a, pulley carries on spokes 3 a ring 2 with radial outwardly flared openings 4 in which guide sleeves 5 are seated. Resilient spokes 1 are rigidly fixed to the outer rim D, the inner ends sliding in the guide sleeves. The guide sleeves 5 comprise sections 5<a> with shims 9 interposed and are held in the openings 4 by split angle irons 11 bolted at 12. If the guide sleeves become worn, the bore can be contracted by removing shims and tightening the rings 11 to force them further into the openings 4. The shims may be flat or of curved spring formation. A channel 10 for lubricant may be provided. In modifications, the hub may be formed of a series of blocks in juxtaposition with extensions for the openings, and the position of the guide sleeves may be radially adjusted by screws. The spokes may have flattened portions or may be curved or S shaped, or may be formed of laminated leaves- The felly may be formed of rubber, wood or metal.
Patent GB-1020133-A (GB)
Title: Fabricated finned tubing and method for making the same
IPC: B21C37/12
Filed: 1963-03-29
Abstract: 1,020,133. Making helically seamed finned tubing; angular bending; coiling welding by pressure; soldering. CALUMET & HECLA Inc. March 29, 1963 [June 11, 1962], No. 12644/63. Headings B3A, B3E and B3R. [Also in Divisions F2 and F4] A helically wound tube comprises a continuous length of strip of generally U-shaped crosssection having a pair of edge flanges 42, 44 which are tapered towards their free edges, the strip being coiled into a tight helix with the outer side surfaces of the flanges of adjacent convolutions of the strip in abutment and bonded together. A strip 30 of a material, e.g. metal or synthetic plastics, is fed through a flange forming roll assembly 34 including rolls 36, 38 and an anvil 40 and thence through an assembly comprising tapering rolls 48, 50 and a stationary anvil 46 to taper the outer face of each flange before being applied to the rotating mandrel 32. The tapering rolls and anvil assembly may be positioned as shown in broken lines in the drawing whence only one set of abutting flanges will be tapered. The rib of the finished tube may comprise flanges of equal height and joined over their whole surface area (Fig. 1, not shown) or only at their outer peripheries the remainder of the flanges being spaced relative to each other (Fig. 3, not shown) or one flange is short and is joined to the base of a longer flange (Fig. 2, not shown). The windings of the tubing may be joined by welding, brazing or soldering in the caes of metal or by heat and pressure treatment in the case of synthetic plastics material. A supply of brazing or soldering rod may be fed to the junction zones in the wound tubing through a passage in the rotating mandrel, the flanges of the tubing being initially connected by spot welding or dimpling at 180-degree intervals during the winding operation and finally connected by passing the tubing through a furnace or induction coil to effect the brazing or soldering (Fig. 8, not shown). In a modification (Fig. 9, not shown) the brazing or soldering rod is brought into engagement with the strip and then wound with the strip into the tubing. The flanges may also be continuously welded together (Fig. 10, not shown). In a further embodiment a short length of tubing is formed on a collapsible rotatable mandrel and then, to prevent unwinding, mounted between clamping members and finally the assembly after the removal of the mandrel is placed in the furnace or induction coil for the joining operation (Fig. 11, not shown). The tubing may be of aluminium, copper or steel.
Patent GB-1439443-A (GB)
Title: Polyvinyl chloride paste
IPC: C08L27/06
Filed: 1974-03-21
Abstract: 1439443 Vinyl chloride polymer composition KURARAY CO Ltd 21 March 1974 [22 March 1973] 12685/74 Heading C3P [Also in Division D1] A polyvinyl chloride paste comprises a homopolymer or copolymer of vinyl chloride in suspension in a plasticizer, together with an N- substituted acrylamidic lower polymer having a degree of polymerization of 2 to 500 and comprising 30-100 molar per cent of the recurring unit of the formula where each of R and R<SP>1</SP> is a hydrogen atom or an alkyl group (C 1-4 ), provided both are not hydrogen at the same time, the said acrylamidic polymer being dissolved in the plasticizer or in an organic solvent that does not dissolve the vinyl chloride polymer. The amount of N-substituted acrylamide lower polymer is preferably 0À05-10 parts per 100 of total polymer. The plasticizer is selected from those conventionally used in vinyl chloride polymer compositions and if the N-substituted acrylamide polymer is insoluble in the plasticizer the organic solvent used to dissolve the polymer is preferably a halogenated hydrocarbon. The copolymers of vinyl chloride may contain in an amount below 20 molar per cent of the conventional copolymerizable monomers. The paste may also include an emulsion stabilizer, pigment or filler. The composition may be used to waterproof fabrics and as an adhesive, e.g. on steel substrates. The specific examples describe pastes comprising: polyvinyl chloride, dioctyl phthalate, calcium carbonate, stabilizer, trichlene and varying amounts of the homopolymer of N,N-dimethyl acrylamide (1); and polyvinyl chloride, tricresyl phosphate, aliphatic acid glycol ester, calcium carbonate, titanium dioxide, dibasic lead phosphite and varying amounts of the copolymer of N,N-di-isopropyl acrylamide (80 mole per cent) and butyl acrylate (3).
Patent GB-1376493-A (GB)
Title: Expansion of fluids
IPC: F04F5/44
Filed: 1973-01-17
Abstract: 1376493 Mixing fluids HICK HARGREAVES & CO Ltd 17 Jan 1973 [17 March 1972] 12747/72 Heading B1C [Also in Division F1] In a method and apparatus for transferring a fluid at higher pressure to a low-pressure zone without generating excessive noise and pipeline vibration, the higher-pressure fluid is passed through an expansion nozzle 3 into a duct where it entrains low pressure fluid, and the mixture passes into a convergent-divergent recompression duct 4, there being one or more choked flow orifices 6 to control the pressure in the duct 4. As described, the higher pressure fluid is steam at 1,000 psi which entrains lowpressure steam at 2 p.s.i. from a receiver 1 through a duct 5; the orifices 6 maintain a pressure of 15 p.s.i. upstream, and the downstream fluid passes through apertures 7 into the receiver 1. In a modification, the orifices 6 may be in the suction portion of the duct 4, in which case the pressure downstream of them is lower than that in the receiver 1 and is increased to the received pressure by cam pressure in the duct.
Patent GB-1064480-A (GB)
Title: Recording heads
Inventor: GUCKENBURG WALTER
IPC: G11B5/127
Filed: 1964-03-25
Abstract: 1,064,480. Recording heads. MINNESOTA MINING & MANUFACTURING CO. March 25, 1964 No. 12758/64. Heading G5R. A magnetic recording head comprises means 11 for generating an alternating magnetic field through a layer of magnetizable material, e.g. a tape 13, and a magnetic means 14 including a non-magnetic gap 15 in close proximity to the layer, so as to produce a resultant field which is uniform through the depth of the layer. The magnetic means 14 may be a single magnet as shown in Fig. 1, a pair of magnetic members, Fig. 3 (not shown), or, Fig. 4, a single auxiliary member 21 adjacent one pole of the energizing means 18. The structure of Fig. 4 may be simplified by substituting a single polepiece for the ring type core, Fig. 6 (not shown). The magnetic core for the energizing winding may be omitted.
Patent GB-995823-A (GB)
Title: A high speed reciprocating scraper tool
IPC: B23D79/00
Filed: 1964-03-26
Abstract: 995,823. Bearings; lubricating. R. J. ASPEEK. March 26, 1964, No. 12776/64. Heading F2A. [Also in Divisions B3 and H2] A scraper tool comprises a rotary motor 11 driving a wobble-plate 37 for moving a scraper blade outwardly from a housing 10, the blade being returned by pressure on the workpiece. The bearings 40, 41 of the wobble-plate shaft 31 are mounted in spring rings 38, 39 as shown in Fig. 5, and are lubricated by pads 44, 45. The wobble-plate is lubricated by a pad 50 which passes oil to a flange 36. A fan 61 circulates air through holes 62, 60 and fins 63 assist in dissipating heat. The front end of the motors shaft is supported only by the bearing 41, the usual motor bearing being removed.
Patent GB-655198-A (GB)
Title: Process and apparatus for the irradiation of liquids
IPC: A61L2/10
Filed: 1948-05-10
Abstract: Liquids are irradiated with active rays by a process which includes the steps of rapidly rotating a vertical tubular member, introducing the liquid to be treated against the upper area of the inside wall of the member, producing a downwardly flowing uniformly thin film on the inner surface of the member due to the rotation, and maintaining the film by centrifugal force while treating it with active rays emanating from a source arranged within the tubular member.  The apparatus may comprise a stainless steel open-ended tube 1 rotating on <PICT:0655198/III/1> ball bearings 2, the liquid being fed by air pressure at a controlled rate through a tube 15 and liquid feed needle 16, and the radiation being provided by an ultra-violet lamp 5.  The irradiated liquid collects in a cup 10.  Examples relate to the sterilization of a liquid suspension of E. Coli.; the inactivation of a suspension in normal saline of rabies virus from goat brain tissue, of equine encephalomyclitis virus, and of mink distemper virus; the production of a human rabies vaccine from infected rabbit brain tissue; the sterilization of serums contaminated with various bacteria and viruses; and the sterilization of antigens (tuberculin) in each case employing a 30-watt ultra-violet lamp. The rates of flow of liquid and speed of rotation are given in the examples.  The preferred radiation has a wave length of 2537 .  The Specification as open to inspection under Sect. 91 describes also the employment of a rotating cylinder made of ray-penetratable substances, the radiation source being located outside the cylinder or both inside and outside the cylinder. This subject-matter does not appear in the Specification as accepted.
Patent GB-557126-A (GB)
Title: Improvements in electric time switches
IPC: G04C23/20
Filed: 1942-09-11
Abstract: 557,126. Stencil switches; time switches. AKTIEBOLAGET ESCO SKANDINAVISKA COMPANIET FOR UTRIKESHANDEL. Sept. 11, 1942, No. 12837. Convention date, June 11. [Class 38 (v)] [Also in Group XL] For obtaining periodic actuation of a switch, an arm 3 is caused to rotate by clockwork, a contact pin 6 thereon bearing on the insulating cover 12 of a .stationary contact disc 11. By means of a stationary gear wheel 2 meshing with a gear wheel 8 pivoted on the arm 3 a snail cam 9 is made to push the contact pin further from the centre as the arm rotates thus causing it to travel on a spiral path. At desired points in time, the pin 6 is pressed through apertures 20 in its path to cause a relay 19 to actuate, for example, a wireless set. In a modification, a light beam is substituted for the pin and a light sensitive cell for the disc 11. Specification 532,910 is referred to.
Patent GB-1070824-A (GB)
Title: Improvements in or relating to portable water distillation apparatus
IPC: C02F1/14
Filed: 1965-03-26
Abstract: 1,070,824. Solar still; distillation of water. G. INGRAM. March 23, 1966 [March 26, 1965], No. 12852/65. Heading B1B. A portable solar still comprises a collapsible shell provided with stiffening members 7, sea water entering the still by way of an absorbant core 5 and rising up a lining of absorbent material on the lower half of the shell. The sun's rays passing through a transparent or translucent upper portion of the shell cause vaporization and the water vapour formed condenses on a cone shaped condensing member 10 for collection in a distilled water reservoir 12 and subsequent removal through pipe 13. The upper portion of the shell is embossed with lens elements to help concentrate the sun's rays. The shell has a split 6 which enables it to be collapsed to a segmental shape together with the cone shaped member, see Fig. 2 not shown, the stiffening members being removable. The two edges of the split, in the operative position, are connected by clips 9 and may be covered with water tight adhesive. A weight attached to the core 5 and a buoyancy ring 15 may be provided to stabilise the still. The shell may be oval hexagonal or polygonal. The condensing member then be provided with distillate guiding channels and the member may be in a modification be in the form of a network of absorbent strips to capture the distillate and funnel it to the reservoir.
Patent GB-1005296-A (GB)
Title: Lifts relating to stairs
Inventor: TOWLER LEONARD
IPC: B66B9/08
Filed: 1963-04-02
Abstract: 1,005,296. Staircase lifts. L. TOWLER. July 2, 1964 [April 2, 1963], No. 12937/63. Heading B8H. A staircase lift comprises a trolley running on a pair of rails 1 and coupled to a driven endless chain 11 which passes around a sprocket  5, driven by a reversible electric motor, and an adjustable idler sprocket 6. The trolley comprises a platform or seat 8 mounted on legs 7 provided with rollers 10 running on the rails 1. The motor is linked through a trailing conductor (not shown), to a control mechanism on the trolley comprising a handle 18 secured to a shaft 12A, which carries a disc provided with a recess and a diametrically opposed notch. A plunger 13 arranged to coact with the recess and notch is provided with a pivoted detent 14 which during ascent of the trolley, engages notches in the underface of the upper rail 1 to prevent the descent of the trolley in the event of a power failure. When the control handle is moved to the " descent " position, the detent is moved away from the associated rail. At the limits of travel of the trolley, a projection 16 on a rod 15 associated with the disc and shaft 12A engages pads 17 secured to the lower rail thereby moving the control handle 18 to the " neutral " position.